- Running tasks concurrently on multiple threads
- findViewById (Activity)
- getExternalFilesDir (Context)
- compareTo (BigDecimal)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- UnknownHostException (java.net)
Thrown when a hostname can not be resolved.
- Enumeration (java.util)
A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- ReentrantLock (java.util.concurrent.locks)
A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- Github Copilot alternatives